Running shell commands in Swift

Question

I'm trying to run shell commands using Swift in my OSX app.

Running basic commands such as echo work fine but the following throws

"env: node: No such file or directory"

@IBAction func streamTorrent(sender: AnyObject) {
  shell("node", "-v")
}

func shell(args: String...) -> Int32 {
    let task = NSTask()
    task.launchPath = "/usr/bin/env"
    task.arguments = args
    task.launch()
    task.waitUntilExit()
    return task.terminationStatus
}

I also get "sh: node: command not found" when running the system command.

system("node -v")

Update:

Not as nice as some of the suggestions below, but I managed to echo the command into a file and have it opened and executed in terminal:

system("echo node -v > ~/installation.command; chmod +x ~/installation.command; open ~/installation.command")

Answer 1

func shell(command: String) -> Int32 {
    let task = NSTask()
    task.launchPath = "/usr/bin/env"
    task.arguments = ["bash", "-c", command]
    task.launch()
    task.waitUntilExit()
    return task.terminationStatus
}

So you can do shell("node -v") which I find more convenient: